diff --git a/Makefile.am b/Makefile.am
index 29d8f51c..09d432c2 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -5,7 +5,7 @@ ACLOCAL_AMFLAGS = -I build-aux
 
 noinst_LTLIBRARIES = ell/libell-internal.la
 
-ell_sources = ell/ell.h ell/private.h \
+ell_sources = ell/ell.h ell/private.h ell/missing.h \
 			ell/util.h ell/util.c \
 			ell/test.h ell/test.c \
 			ell/queue.h ell/queue.c \